The nucleus consists of the protons and neutrons. It contains the most mass in the atom.
Answer:
The kinetic energy of the car will be 97.2.
Answer:
yes
Explanation:
the definition for time is correct, the definition for speed is incorrect
As per the law of constant composition, a given sample will always contain the same number of elements that combine in the same mass proportion.
Therefore if a sample of 13.97 g of NaBr contains 22.39 % of Na by mass then, a sample of 5.75 g of NaBr would also contain 22.39% Na by mass
Hence:
Mass of Na = 5.75 g * 22.39/100 = 1.287 g
5.75 g of NaBr would contain 1.29 g of Na
